No description available.
Launch Date
12/7/2021
Launch Site
CC SLC41
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Launch Vehicle
Atlas V 551 G (Atlas 5 Family)
STP-3 flew to geosynchronous Earth orbit on an Atlas 5 551 configured with five strap-on solid rocket boosters.
The threshold and objective mass figures for STP-3 correspond to approximately 3.27 metric tons and 4.56 metric tons respectively.
The U.S. Air Force released the final RFP for the STP-3 launch service on September 29, 2016 with proposals due no later than December 2, 2016.
The U.S. Air Force released a draft Request for Proposal for the Evolved Expendable Launch Vehicle (EELV) launch service for the Space Test Program (STP)-3 mission on August 19, 2016.
There are six additional Atlas 5 missions that ULA was awarded under the follow-on EELV Phase 1A procurement: STP-3, AFSPC-12, AFSPC-8, Silent Barker, SBIRS GEO 5, and SBIRS GEO 6.
United Launch Alliance planned the STP-3 launch for the U.S. Space Force from Cape Canaveral Space Force Station on 2021-11-22.
The U.S. Air Force awarded United Launch Alliance a $191,100,000 contract in 2017 to launch STP-3 in 2019.
The STP-3 mission is scheduled to launch no earlier than 2021-12-05 from Space Launch Complex-41 at Cape Canaveral Space Force Station.
Northrop Grumman provided five Graphite Epoxy Motors (GEM) 63 solid rocket boosters for the Atlas V 551 that launched STP-3.
The Northrop Grumman-built LDPE-1 launched aboard the STP-3 mission in December 2021.